<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vue对象挂载dom元素</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>

</head>
<body>

    <div id="app">

        <h3>{{msg}}</h3>
    </div>

    <script>
        new Vue({
            el:"#app",
            data() {
                return {
                    msg: 'my name is tangluofan ...'
                }
            },
        })
    </script>
    
</body>
</html>